11310242505 has 16 divisors (see below), whose sum is σ = 18098260800. Its totient is φ = 6031505088.

The previous prime is 11310242497. The next prime is 11310242509. The reversal of 11310242505 is 50524201311.

It is a happy number.

It is not a de Polignac number, because 11310242505 - 2³ = 11310242497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11310242509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136119 + ... + 202851.

It is an arithmetic number, because the mean of its divisors is an integer number (1131141300).

Almost surely, 2^11310242505 is an apocalyptic number.

11310242505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11310242505 is a deficient number, since it is larger than the sum of its proper divisors (6788018295).

11310242505 is a wasteful number, since it uses less digits than its factorization.

11310242505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78040.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 11310242505 its reverse (50524201311), we get a palindrome (61834443816).

The spelling of 11310242505 in words is "eleven billion, three hundred ten million, two hundred forty-two thousand, five hundred five".